<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h2 th:text="#{name}"></h2>
    <a href="@{/lang(l='zh_CN')}"></a>
    <a href="@{/lang(l='en_US')}"></a>
<p th:if="${not #strings.isEmpty(mes)}"></p>
</body>
</html>